#include<stdio.h>

int main()
{
#ifdef v1
  printf("功能一\n");

#elif v2
  printf("功能一\n");
  printf("功能二\n");
  printf("功能三\n");

#else
  printf("功能一\n");
  printf("功能二\n");
  printf("功能三\n");
  printf("功能四\n");
  printf("功能五\n");
#endif
}
